Mitsubishi Diamante Problem Report

Mitsubishi Diamante Coolant Leak From Heater Core

(27 reports)

A coolant leak may develop from the heater core, requiring replacement of the heater core.

The problem is the heater core and I want to know if it has been on recall. 2003 Mitsibushi Galant -
Replaced radiator, but slow coolant leak reoccurred after few months. Foggy front windows, smell of coolant, empty radiator, slight engine overheating. Returned to same mech who replaced radiator, they pressure test and leak check but could not find anything obvious. Finally they diagnosed heater coil leak inside dash. Expensive job to fix, at least $1K. Debating worth it on 12+ year old car, which is otherwise in fantastic driving condition. -
I noticed a sweet smell coming from heater, call dealer and he said that it was the heater core. He also said that it's a problem in most Diamantes. I ask if there was a recall, told me no :( I put stop leak in the radiator for now -
i was driving the car after cleaning it and the floor felt wet so i pulled the mat up and it was damp so i pulled the plastic off under the glove box and felt a lot of condonsation on the white box around the heater core -
lots of film on windshield hard to see and hard to get off. Hard to breath with windows closed. Any Recalls on this problem? Very expensive to repair. -
syrupy smell, foggy front window, soaked passenger carpet -
Coolant leak from heater coil. Defrost not defogging windshield. -
heater core had to be replaced -
Replaced Heater Core -
coolant leak from heater core. returned to dealer. at the time i had a extended warranty that covered the parts and service. -
leaking water or right at the floor on the floor of the car inside -
over heating in the heater core system an leakin like hell after travalling 5 km?? -
03 MITSUB DIAM LS --IM HAVING PROBLEMS WITH MY DEFROST AND SMOKE COMING INTO THE VEHICLE FROM THE GLOVE COMPARTMENT AND VENTS. iT STARTED AS MIST NOW ITS FOGGING UP MY WINDOWS. IM HAVING TO CRACK MY PASSENGER WINDOW TO BREATH. -
Heater core started leaking, started dripping inside the care as well onto the passenger side floor. -
smell of coolant and heating/air flow to lower compartment only blows cold air. -
i have the same problem with the heater coil, but mine went out and now it is time for replacement. -
Related Items:
coolant is leaking slowly. added stop leak and it has nearly stoped leaking. still just not q...
if the pipe or faulty o-ring leaks from my heater core...what would it affect to make the neut...
This doesn't happen all the time, but only when in traffic going less than 5 MPH. The car can b...
when i turn my temperature up it doesnt heat.